111101001080999 has 2 divisors, whose sum is σ = 111101001081000. Its totient is φ = 111101001080998.

The previous prime is 111101001080989. The next prime is 111101001081001. The reversal of 111101001080999 is 999080100101111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111101001080999 - 2²⁴ = 111100984303783 is a prime.

It is a Sophie Germain prime.

Together with 111101001081001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101001080969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550500540499 + 55550500540500.

It is an arithmetic number, because the mean of its divisors is an integer number (55550500540500).

Almost surely, 2^{111101001080999} is an apocalyptic number.

111101001080999 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101001080999 is an equidigital number, since it uses as much as digits as its factorization.

111101001080999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 41.

The spelling of 111101001080999 in words is "one hundred eleven trillion, one hundred one billion, one million, eighty thousand, nine hundred ninety-nine".